Jobs in the United States

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Added 1 min ago
Senior Specify Software Developer
University of Kansas
Lawrence, KS
We are searching for a software engineer to help us document the diversity of life on Earth. The ideal candidate values meaningful work contributing to a global mission that builds on 350…
Added 6 mins ago
SB
Full Stack Engineer*
San Bernardino County
San Bernardino County, CA
- $47.11 to $66.5 USD / hour
This advanced technical position will work across multiple technology layers, including enterprise software platforms, cloud and software-as-a-service applications, application interfaces,…
Added 15 mins ago
Analog Design Engineer
Analog Devices Inc.
TX
…the Intelligent Edge. ADI combines analog, digital, AI, and software technologies into solutions that combat climate change, reliably connect humans and the world, and help drive…
Added 22 mins ago
Software Test Engineer
Innovation Associates, Inc.
Binghamton, NY
As a Software Test Engineer, you’ll take a hands-on approach to validating complex, real-world scenarios through thoughtful and thorough manual testing. You’ll partner closely with…
Added 23 mins ago
AE
Sr Software Engineer I
American Express
New York, NY
- $123,000 to $215,250 USD / year
Experience with unit testing, integration testing, test automation, and software quality assurance.
Added 24 mins ago
Delv Senior Software Eng
Mphasis Corporation
NEW YORK, NY
Added 1 hour ago
Mid-Level Software Engineer
Trinzic
Colorado Springs, CO
KBR is seeking a Mid Level Software Engineer to design, develop, and maintain the software baseline of multiple contracts. The successful candidate will work across the full domain of our…
Added 1 hour ago
Senior Platforms Engineer, Compute, Storage, and Virtualization
Marathon Petroleum Corporation
Denver, CO
…landscape, we are seeking a dynamic and experienced Senior Platforms Engineer to join our Infrastructure Engineering & Operations organization. This role combines deep technical expertise…
Added 1 hour ago
W
Senior Software Engineer
Walmart
SUNNYVALE, CA
- $150,080 to $234,000 USD / year
…appropriate languages, development standards and tools for software coding/configuration. Take initiative to learn the fundamentals of different coding languages and frameworks that would…
Added 1 hour ago
W
Staff Software Engineer
Walmart
SUNNYVALE, CA
- $150,080 to $286,000 USD / year
Duties: Explore relevant software products and solutions from an existing repertoire that can address business/technical needs. Assess software gaps between the customer and business…
Added 1 hour ago
W
Staff Software Engineer
Walmart
SUNNYVALE, CA
- $143,000 to $286,000 USD / year
Duties: Explore relevant software products and solutions from an existing repertoire that can address business/technical needs. Assess software gaps between the customer and business…
Added 1 hour ago
W
Senior Software Engineer
Walmart
SUNNYVALE, CA
- $150,080 to $234,000 USD / year
…appropriate languages, development standards and tools for software coding/configuration. Take initiative to learn the fundamentals of different coding languages and frameworks that would…
Added 1 hour ago
W
Senior Software Engineer
Walmart
SUNNYVALE, CA
- $150,080 to $234,000 USD / year
…TypeScript, Python, Java, Rust, Dart, and C++. Drives full software development lifecycle, including CI/CD deployments, automated testing, observability, monitoring, and maintenance. Builds…
Added 1 hour ago
W
Software Engineer III
Walmart
SUNNYVALE, CA
- $150,080 to $234,000 USD / year
…business requirements, functional requirements, design and test cases. Contribute to the creation of user stories for component/module/simple requirements (for example: based on scalability…
Added 1 hour ago
W
Software Engineer III
Walmart
SUNNYVALE, CA
- $150,080 to $234,000 USD / year
…business requirements, functional requirements, design and test cases. Contribute to the creation of user stories for component/module/simple requirements (for example: based on scalability…
Added 1 hour ago
Software Engineer III
Walmart
BENTONVILLE, AR
…business requirements, functional requirements, design and test cases. Contribute to the creation of user stories for component/module/simple requirements (for example: based on scalability…
Added 1 hour ago
W
Staff Software Engineer
Walmart
SUNNYVALE, CA
- $150,080 to $286,000 USD / year
…Select appropriate frameworks, platforms, and environments for software coding/configuration and scripting. Guide the team on coding patterns, languages and frameworks in line with evolving…
Added 1 hour ago
W
Software Engineer III
Walmart
SUNNYVALE, CA
- $150,080 to $234,000 USD / year
…business metrics like demand forecasts. Identify and execute automation measures and enhancements to optimize pipeline’s performance to maintain minimum running costs and adhere to the…
Added 1 hour ago
W
Senior Software Engineer
Walmart
SUNNYVALE, CA
- $117,000 to $234,000 USD / year
…appropriate languages, development standards and tools for software coding/configuration. Take initiative to learn the fundamentals of different coding languages and frameworks that would…
Added 1 hour ago
W
Software Engineer III
Walmart
SUNNYVALE, CA
- $117,000 to $234,000 USD / year
…business requirements, functional requirements, design and test cases. Contribute to the creation of user stories for component/module/simple requirements (for example: based on scalability…
Added 1 hour ago
W
Software Engineer III
Walmart
SUNNYVALE, CA
- $117,000 to $234,000 USD / year
…business requirements, functional requirements, design and test cases. Contribute to the creation of user stories for component/module/simple requirements (for example: based on scalability…
Added 1 hour ago
W
Senior Software Engineer
Walmart
SUNNYVALE, CA
- $117,000 to $234,000 USD / year
…consumer facing features in the Walmart Canada Mobile App using software languages Kotlin, Java, and XML. Create and maintain internal shared libraries in Android SDK for the global app on…
Added 1 hour ago
W
Software Engineer III
Walmart
SUNNYVALE, CA
- $117,000 to $234,000 USD / year
…business requirements, functional requirements, design and test cases. Contribute to the creation of user stories for component/module/simple requirements (for example: based on scalability…
Added 1 hour ago
W
Senior Software Engineer
Walmart
SUNNYVALE, CA
- $117,000 to $234,000 USD / year
…appropriate languages, development standards and tools for software coding/configuration. Take initiative to learn the fundamentals of different coding languages and frameworks that would…
Added 1 hour ago
W
Software Engineer III
Walmart
SUNNYVALE, CA
- $150,080 to $234,000 USD / year
Duties: Demonstrates up-to-date expertise and applies this to the development, execution, and improvement of software engineering plans; supporting and aligning efforts to meet customer and…

Relativity Space

Thermal Engineer I

Long Beach, CA, United States

$90,000 - $136,000 USD

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Job details

Pay: $90,000 - $136,000 USD
Posting language: English
Posted: Oct 29, 2026

Original job description

At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known.

Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.

About the Team:

Relativity’s Integrated Performance teams ensure that our products work across all systems and disciplines, from trajectory design to aerodynamics to reliability analysis and beyond. Our groups size the Terran R rocket, design its missions for customer success, reliability, and reusability, and ensure that every system on the rocket and ground is engineered correctly for the demanding environments of launch and entry. Recently, we completed the preliminary design and analysis of Terran R including Relativity’s first-ever work on launch vehicle reusability, spanning advanced trajectory simulations, wind tunnel testing, and structures analysis, among many other projects.

The Thermal team is responsible for predicting temperatures, designing thermal architectures, and guiding designs for the structures, fluids, components, and avionics of our launch vehicles. With a strong grasp of thermodynamics and all methods of heat transfer, the team addresses a vast number of thermal challenges across ground and flight phases. The team leverages first-principle hand calculations, reduced order modeling, and coupled system detailed thermal modeling to drive cross disciplinary vehicle designs. Our collaboration with hardware engineers and all other teams further enables us to overcome design and integration hurdles, ensuring a seamless and efficient development process from concept through launch.

About the Role:

Drive the architecture, sizing, and development of thermal systems like insulation, heaters, thermal protection, and environmental conditioning in collaboration with peer technical teams
Build, execute, and validate thermal analyses at the component, sub-system, and vehicle level, including supporting tool development and automation
Guide design and development engineers in the successful application of thermal sciences to achieve system and component requirements
Develop and execute tests to support thermal systems development and qualification, including test article integration, instrumentation setup, and data processing
Support vehicle and engine thermal system development and stage testing, as well as flight operations

About You:

Bachelor's degree in Engineering or related field
Experience in industry via internships or university collaborations
Strong fundamentals in heat transfer and thermal analysis
Hands-on experience with writing test plans and performing testing, instrumentation, and data analysis at the component and system level
Experience with an engineering scripting language like MATLAB or Python

Nice to haves, but not required:

Graduate degree in engineering or related field
Experience solving complex problems on integrated vehicles with design teams
Experience in component and system level thermal and fluids analysis, using relevant toolsets like Sinda/Fluint/Thermal Desktop or other commercial FEM/FDM/FVM solvers
Familiarity with cryogenic liquid rocket stage architecture, engine architecture, and operations
Understanding of aerodynamics and external flight related heating, including thermal protection system materials and thermal protection system sizing

At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.

Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.

Hiring Range:

$90,000 - $136,000 USD

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

If you need a reasonable accommodation, please contact us at accommodations@relativityspace.com.

Please note: Relativity Space does not accept unsolicited resumes, candidate profiles, or referrals from recruitment agencies or search firms. Any unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role.

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More about this job

Skills

Collaboration
Part requirements
Process data
Data analysis
The MathWorks MATLAB
Python
FEM
Recruitment

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